潮汐变化对沿江大型泵站叶片调节优化运行影响  

Influence of tidal variation on optimal operation of adjustable blades in large pumping station along Yangtze River

作　　者：张礼华[1] 钱海涛 

机构地区：[1]扬州大学水利科学与工程学院,江苏扬州225009 [2]常州市武进区水利局,江苏常州213000

出　　处：《人民长江》2012年第24期75-77,共3页Yangtze River

基　　金：江苏省属高校自然科学基金项目"复杂并联泵站组合优化算法理论研究与应用"资助(11KJB57002)

摘　　要：针对沿江大型泵站单机组叶片全调节运用工况,建立了考虑潮汐影响的日优化运行模型。该模型是以单机组耗电费用最少为目标函数,时段为阶段变量,水泵叶片安放角为决策变量,日提水量为约束条件。以江都四站为例进行计算,确定不同水量约束、不同日均扬程、不同日均潮差变幅条件下,长江潮汐变化对泵站单机组优化运行效果的影响。结果表明:随着日均扬程的降低和日均潮差的增大,沿江泵站叶片全调节优化运行效果愈加明显。A model of optimal daily operation of single adjustable-blade pump unit in the large pumping station along Yangtze River is established with the consideration of tidal influence.The minimum cost of energy consumption of single pump unit is set as the objective function,the periods are defined as stage variables,the blade angle is expressed as a decision variable and the daily quantity of pumping water is considered as the constraint.With the case of No.4 Jiangdu Pumping Station,the influence of tidal changes of Yangtze River on the result of optimal operation of single pump unit is determined under the condition of different constraints of water quantity,average pumping heads and daily average amplitude of tidal ranges.The results show the effect of optimal operation of adjustable blades pump unit in the pumping station along Yangtze River is getting more obvious with the decrease of average pumping heads and increase of average tidal ranges.

关 键 词：大型泵站 叶片全调节 动态规划 优化运行 潮汐变化 

分 类 号：TV734[水利工程—水利水电工程]